共查询到19条相似文献，搜索用时 171 毫秒
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《中国林学(英文版)》1996,(1)
在综合评价全球气候变化对我国的气候和森林影响的基础上，根据我国的实际，有针对性地从良种选育、人工造林、天然次生林和原始林的经营、间伐和轮伐期的调整、森林多样性保护、森林病虫害防治、森林防火等７个方面探讨了我国适应全球气候变化应采取的林业对策，为我国制定长远的持续发展策略提供参考． 相似文献
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气候变化与森林可持续经营森林和林业工作者均处在不断的变化之中。对森林而言, 其变化是一个接一个的物种进行生存适应的复杂行为, 它既可以由渐进的自然演替所引起, 也可因急剧的气候改变或其它干扰而产生。 相似文献
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当前,气候变化是全球关注的热点问题,森林在应对气候变化中的重要作用已得到广泛认可。2009年哥本哈根气候大会之后,减少源于毁林和林地退化造成的碳排放（REDD）发展成为森林可持续经营与森林保护等（REDD＋）。通过改进森林经营模式、提高碳汇能力和生物多样性．增强稳定性, 相似文献
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10月14-16日,第二届森林科学论坛——森林可持续经营国际学术研讨会在北京召开来自世界20多个国家约300名林业专家学者,围绕“以应对气候变化下的森林可持续经营”的主题,共同探讨了森林可持续经营的途径、方法,交流了森林可持续经营的先进理念与技术措施。 相似文献
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指出了森林作为陆地生态系统的主体,也是联系外界环境的重要纽带。森林可持续经营在应对全球气候变化、维持森林生态服务、促进经济发展及人民生活水平提升等方面有着不可替代的作用,是林业发展的重要方向。主要通过总结归纳国内外森林经营理论、方法及实践经验,提出了我国的森林可持续经营的对策,以供参考。 相似文献
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气候变化背景下森林火灾发生规律研究 总被引：2，自引：0，他引：2
随着气候变暖加剧,全球森林火灾灾害发生的频率与强度亦随之增加,世界各地森林火灾潜
在的危险将长期存在,严重程度也将大幅增加。森林火灾对森林生态资源和全球气候产生了重大影响,
由于其突发性强、破坏性大、处置救助极为困难,是当今世界最为严重的生态灾害和突发性公共事件之
一。森林火灾发生发展规律是森林火灾预防与扑救的重要依据,加强其规律研究有利于有的放矢地开展
森林防灭火工作。针对气候变化现状及发展态势,结合气候变化背景下国内外森林火灾现状,系统论述
了气候变化对我国森林火灾发生发展规律的影响,主要阐述了气象条件影响森林火灾的发生,气候影响
森林可燃物,气候影响森林火源,气象影响森林火行为,气候决定森林火灾周期以及气候变化对森林火
灾时空分布规律的影响。在全球气候变暖的背景下,从解析我国森林火灾发生规律入手,通过气候变化
背景下我国森林火灾发生规律的研究,客观认识我国和各地区森林火灾发生发展规律,从而为国家和地
方各级政府有效开展森林火灾灾害防治和应急管理工作、切实保障社会经济可持续发展提供科学决策
依据。 相似文献
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Puskar N. Khanal Donald L. Grebner Ian A. Munn Stephen C. Grado Robert K. Grala James E. Henderson 《Small-Scale Forestry》2017,16(3):419-434
To implement effective climate change mitigation and carbon sequestration activities in the southern US, nonindustrial private forest landowner (NIPF) participation is necessary because of the significant area of forest land under their ownership. For policy implementation to involve this major ownership group in climate change mitigation activities in this region, it is important to understand their forest management motivations and understanding toward carbon sequestration. This study develops a regional typology of NIPF landowners based on reasons for owning forest land in the southern US. The specific goals were to: (1) segment NIPF landowners into smaller homogeneous groups based on reasons for owning forest land; (2) identify landownership characteristics and forest management behavior by ownership groups; and (3) assess their climate change beliefs and understanding of forest carbon sequestration by ownership groups. A principal component-cluster analysis of 735 responses to a mail questionnaire distributed to NIPF landowners in the southern US revealed three groups, which were named amenity, multi-objective, and timber-oriented landowners. The amenity group included 21% of the landowners, while the timber and multi-objective groups included 40% and 39% of the landowners, respectively. These landowner groups varied in terms of owner characteristics, forest species type and management behavior, climate change beliefs and understanding of carbon sequestration. The amenity and multi-objective owners tend to have more positive belief toward climate change than the timber group, but more landowners in each group indicated having poor understanding of forest carbon sequestration. The study fills a knowledge gap in research efforts by developing a regional typology of NIPF landowners and linking it with their forestry resources and management strategies along with their climate change beliefs and understanding of forest carbon sequestration. 相似文献
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国外森林防火工作现状及展望 总被引：26，自引：3，他引：23
森林火灾是危害森林的一个重要的自然因子,尤其是近年来全球气候变暖,森林火灾更有增加的趋势。本文根据近年的林火统计资料分析了国外一些国家和地区的森林火灾次数与面积、火灾类型、火灾发生趋势和火灾损失情况,并介绍了这些国家的防火组织机构,对森林防火工作的未来做了展望。 相似文献
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森林资源清查在于摸清森林资源现状及其变化规律,为林业政策制定和调整提供参考依据。文中基于第九次全国森林资源清查结果,选取其中有代表性的数量和质量指标,运用比较分析、因果分析和潜力分析的方法,进行森林资源清查前后的纵向比较及国内国际的横向比较;在此基础上,进一步研究森林资源变化的推动力,包括植树造林、生态工程、森林经营、避免灾害、适度采伐、提高科技水平、政策制度,及国内国际"两个市场"等,并从数量空间、质量空间、木材需求、科技水平、政策导向等方面分析森林资源增长的潜力;最后,提出确立清晰的森林经营目标和方向、科学开展大规模国土绿化、重视森林质量和可持续经营、做好资源管理和灾害防治工作、充分利用国内国际"两个市场"等政策建议,以期为森林科学经营和林业资源管理提供决策支持,为推进生态文明建设和实现国家"双碳"目标作出贡献。 相似文献
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Land-based emissions are an important contributor to global climate change. Various jurisdictions worldwide have implemented forest carbon mitigation strategies and policies to reduce their GHG emissions or increase carbon sequestration. Yet the policy literature on forest carbon mitigation is limited, and no attempt has been made so far to systematically document a jurisdiction's existing forest carbon mitigation policies and policy gaps. This paper applies policy gap analysis to policies for GHG and forest management in the province of British Columbia (BC), Canada, as a case study focusing on the challenges posed by existing policies and the opportunities for policy innovation to more effectively promote forest carbon mitigation. This policy gap analysis shows that while BC has an ambitious climate action regime for fossil fuel-based emissions, it has few policies explicitly targeting forests or the use of harvested wood products for carbon mitigation. As a result, forest carbon mitigation is an under-exploited opportunity for the province. Throughout history, forest management policies have evolved in response to changing social values, such as protection of fresh water, fish and wildlife, and biodiversity. As this case study of BC illustrates, it is time for jurisdictions to renew their forest policies to more effectively incorporate opportunities for carbon mitigation. 相似文献
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随着经济的发展,国有林经营体制也应得到进一步完善。本文根据国有森林经营的现状以及森林分类经营的实质,提出了国有森林分类经营的措施。 相似文献
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《中国林业科技(英文版)》2010,(2):1-12
As a developing country with a large population and a fragile ecological environment, China is particularly vulnerable to the adverse effects of climate change. Beginning with the Rio Conference of 1992 China has played a progressively enhanced role in combating climate change. A series of policies and measures to address climate change have been taken in the overall context of national sustainable development strategy, making positive contributions to the mitigation and adaptation to climate change, among ... 相似文献
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森林生态系统是人类社会赖以生存的重要生态系统类型。然而,人类活动所引起的温室效应及其造成的全球气候变化对森林生态系统的负面影响正越来越引起全世界的关注。文中系统地阐述了全球气候变化事件对森林生态系统的植被分布、迁移趋势、适应能力、火灾状况、虫害爆发、木材产量和生物多样性等诸方面所产生的重要影响。另外,森林生态系统在减缓全球气候变化的过程中发挥着极为重要的作用。文中从森林可持续发展的角度系统地分析了应对气候变化应采取的森林可持续发展的相关策略与措施,并建议通过实时监控、及时防治、科学指导、全球合作等手段进一步增强森林生态系统的适应性和减缓全球气候变化的能力。 相似文献